From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9E10C3DA79 for ; Fri, 23 Dec 2022 23:03:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230490AbiLWXDK (ORCPT ); Fri, 23 Dec 2022 18:03:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230383AbiLWXDJ (ORCPT ); Fri, 23 Dec 2022 18:03:09 -0500 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9A791FCD2 for ; Fri, 23 Dec 2022 15:03:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=3HtaAEcc/uBAdWpNuLhr+dJ0yXgZ8VnGLfkx72TUtUs=; b=IeisfcdIVebxyXXKgR7+9MCDGm xXTpwqMaVXGhXWaWKMlGmPVA6E+bBDoR/xzXW1SX2pZLXN60QzhW0yTRUeckiDv7VvX8otU15oz+a fJRrJV19s3dUZGFq22Crtfu1NiyH0XXFLKDkKiTaTKRC35DeGD0jVlrCaNE1yCQWPMvY=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1p8r4B-000Mni-Tq; Sat, 24 Dec 2022 00:03:03 +0100 Date: Sat, 24 Dec 2022 00:03:03 +0100 From: Andrew Lunn To: Colin Foster Cc: Florian Fainelli , Vladimir Oltean , Alexandre Belloni , netdev@vger.kernel.org Subject: Re: Crosschip bridge functionality Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org > Fair question. We have a baseboard configuration with cards that offer > customization / expansion. An example might be a card that offers > additional fibre / copper ports, which would lend itself very nicely to > a DSA configuration... more cards == more ports. > > We can see some interesting use of vlans for all sorts of things. I > haven't been the boots on the ground, so I don't know all the use-cases. > My main hope is to be able to offer as much configurability for the > system integrators as possible. Maybe sw2p2 is a tap of sw1p2, while > sw2p3, sw2p4, and sw1p3 are bridged, with the CPU doing IGMP snooping > and running RSTP. > > > > > I know people have stacked switches before, and just operated them as > > stacked switches. So you need to configure each switch independently. > > What Marvell DSA does is make it transparent, so to some extent it > > looks like one big switch, not a collection of switches. > > That is definitely possible. It might make the people doing any system > integration have a lot more knowledge than a simple "add this port to > that bridge". My goal is to make their lives as easy as can be. > > It sounds like that all exists with Marvell hardware... You might want get hold of a Turris Mox system, with a few different cards in it. That will give you a Marvell D in DSA system to play with. And your system seems quite similar in some ways. Andrew